HEADERS or DOWN PIPE FIRST?!?!!?
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HEADERS or DOWN PIPE FIRST?!?!!?
Hey Ppl! I Just Wanted To Know Which I Should Get First....headers Or A Down Pipe. I Have A 2002 Oz Rally Lancer. And Im Gonna Buy It For My Husband For His Anniversary Gift And He Comes Home In Feb. From Iraq. And I Know For Sure He Will Be Happy Cause He Always Been Wanting That. But Yeah...pls Tell Me Which Brand Is The Best Ok....and All I Got Installed In My Car Is An Injen Intake And A Greddy Exhaust....what U Guys Think?!???!
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From: Kansas Now/Louisiana/Connecticut
Originally Posted by lookslikeanevo
your stock DP should be fine ...tho there are little gains to be had with the DP
Originally Posted by lookslikeanevo
header.....as this is your most restrictive part....your stock DP should be fine ...tho there are little gains to be had with the DP...header first
That is rubbish. The downpipe was my first exhaust mod, and it made a big difference. Going from 0.5" up to 2.5" makes a difference. Buschur even proved it on the dyno.
The header will give larger gains, but costs about double. So decide what you want to spend.
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RPW is running a sale on thier race design headers WITH downpipe: $480 shipped. Call vision Imports at 407.923.3966 between Noon and 6PM Eastern time. This is a killer combo 
RPW extended the Sale through Feb. Here's the thread:
https://www.evolutionm.net/forums/sh...pw+race+design
Here's RPW's site: http://www.rpw.com.au
and vision Imports, for good measure: http://www.visionimports.com
RPW extended the Sale through Feb. Here's the thread:https://www.evolutionm.net/forums/sh...pw+race+design
Here's RPW's site: http://www.rpw.com.au
and vision Imports, for good measure: http://www.visionimports.com
show me a dyno...and of the differences...i have already had both mods....header and DP and header only...only thing a felt was in the high end...and not by a lot...so its not rubbish...oh and with the DP, i did loose some low end....so i guess its all in where you do your driving...high end or low end....i would rahter have the low...
It also depends on the size DP you install.... if you go "wyde opennnn yo!" with the 3" (or even 2.5") you're killing your scavenging. I noticed quite a difference when I installed my 2.25" DP. These cars are so torquey (at least mine is) that if I'm losing a couple TQ, I'm not noticing.
And part of the RPW design is that they aid scavenging by increasing the length of the runners before they merge... it's a good design. And you then need their DP because the stocker won't fit anmore.
I know it's Import Tuner but...... http://www.importtuner.com/tech/0205it_pplancer/
I'm out!!
And part of the RPW design is that they aid scavenging by increasing the length of the runners before they merge... it's a good design. And you then need their DP because the stocker won't fit anmore.
I know it's Import Tuner but...... http://www.importtuner.com/tech/0205it_pplancer/
I'm out!!
Since no one will hunt in the link...
Originally Posted by Import Tuner
(For dyno run #3) Peak power checked in at 108.4 hp and peak torque rose to 120.0 lb-ft.
The Buschur downpipe was then installed with a test pipe. With the complete exhaust system flowing at its maximum, the entire powerband shifted upwards, which means, in layman's terms, that more power would be available at an earlier point in the powerband. Specifically, the extreme low and mid/high to high rpm ranges experienced the most benefit, with increases as high as 7 or 8 hp. Torque also increased with a less dramatic falloff in the high rpm range--this translates into more "pull" for the vehicle at its high-end powerband. Peak horsepower checked out at 111.9 hp, while the torque peaked out at 121.6 lb-ft.
The Buschur downpipe was then installed with a test pipe. With the complete exhaust system flowing at its maximum, the entire powerband shifted upwards, which means, in layman's terms, that more power would be available at an earlier point in the powerband. Specifically, the extreme low and mid/high to high rpm ranges experienced the most benefit, with increases as high as 7 or 8 hp. Torque also increased with a less dramatic falloff in the high rpm range--this translates into more "pull" for the vehicle at its high-end powerband. Peak horsepower checked out at 111.9 hp, while the torque peaked out at 121.6 lb-ft.
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From: TB, FL
I'm more school in thought like EB, not being RPW bias here. Too big = the motor can't create enough exhaust flow to be effective.
As for Import Tuner, I'm skeptical of their dyno stuff comparing to SCC. Maybe, SCC is a bit more conservative, but Import Tuner tends to be more rosey.
As for Import Tuner, I'm skeptical of their dyno stuff comparing to SCC. Maybe, SCC is a bit more conservative, but Import Tuner tends to be more rosey.